SHARE PURCHASE AND SUBSCRIPTION AGREEMENTS - Variable Interest Entities (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Variable Interest Entity
Cash and cash equivalents	$ 12,112,577	$ 10,895,044
Accounts receivable, net	5,796,484	4,858,847
Inventory	2,402,126	1,458,288
Prepaid expense and other current assets	5,062,889	1,942,137
Total current assets	113,144,368	29,785,388
Fixed assets, net	14,581,774	13,922,537
Finance lease right-of-use assets	14,842	18,100
Operating lease right-of-use assets	4,850,112	4,734,497
Intangible assets, net	385,798	466,546
Other assets	11,708,732	1,008,733
TOTAL ASSETS	144,685,626	122,099,958
Accounts payable	5,673,876	2,419,543
Accrued expenses	2,185,282	980,233
Finance lease liability-current	872,694	783,747
Operating lease liability-current	14,398,267	4,367,169
Total current liabilities	62,398,086	23,850,412
Finance lease liability-long term	0	315,513
Operating lease liability-long term	3,977,418	3,950,750
Total liabilities	67,572,248	$ 60,809,023
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity
Cash and cash equivalents	7,229,786		$ 7,890,886
Accounts receivable, net	7,601,929		3,591,468
Inventory	927,810		629,667
Prepaid expense and other current assets	1,567,763		926,203
Total current assets	17,327,288		13,038,224
Fixed assets, net	7,290,467		6,549,139
Finance lease right-of-use assets	805,313		1,031,353
Operating lease right-of-use assets	237,217		299,758
Intangible assets, net	876,440		1,064,624
Other assets	106,643		108,643
TOTAL ASSETS	26,643,368		22,091,741
Accounts payable	2,290,245		1,753,160
Accrued expenses	630,442		307,340
Finance lease liability-current	692,274		346,029
Operating lease liability-current	181,644		251,037
Total current liabilities	3,794,605		2,657,566
Finance lease liability-long term	0		643,446
Operating lease liability-long term	55,573		48,721
Total liabilities	$ 3,850,178		$ 3,349,733